EARU Electric 440V 63A 3-Phase Voltage and Overcurrent Protector Instruction Manual

1. Mawu Oyamba

This manual provides comprehensive instructions for the installation, operation, and maintenance of the EARU Electric 3-Phase Voltage and Overcurrent Protector, Model EARU-1008. This device is designed to safeguard 3-phase electrical systems by continuously monitoring voltage and current, offering protection against over-voltage, pansi pa voltage, overcurrent, and phase failure. It is suitable for industrial and commercial applications requiring reliable electrical monitoring and protection.

2. Zambiri Zachitetezo

WARNING: Electrical shock hazard. Installation and maintenance should only be performed by qualified personnel.

• Nthawi zonse dulani magetsi musanayike kapena kukonza chipangizocho.
• Onetsetsani malo oyenera kuti musagwedezeke ndi magetsi.
• Verify all wiring connections are secure and correct according to the wiring diagram.
• Musagwiritse ntchito chipangizochi ngati chikuwoneka kuti chawonongeka.
• Tsatirani ma code amagetsi a m'deralo ndi dziko lonse.

3. Zamalonda Zathaview

3.1. Zofunika Kwambiri

• Real-time 3-Phase Monitoring: Displays live voltage (L1, L2, L3) and current (L1, L2, L3) values.
• Chitetezo chokwanira: Safeguards against over-voltage, pansi pa voltage, overcurrent, and phase failure.
• Magawo Osinthika: User-configurable settings for protection thresholds and recovery delays.
• Automatic Phase Failure Reset: Detects and automatically resets after phase anomalies.
• High-Visibility LED Display: Bright red LED for clear readings in various lighting conditions.
• DIN Rail Mount: Easy integration into standard electrical panels.
• Clear Terminal Labeling: Simplified installation with clearly marked input and output terminals.

3.2. Components and Display

The device features a clear LED display and intuitive control buttons for configuration. The display shows real-time voltage and current for each phase, along with indicators for protection status.

Chithunzi 3.2.1: Patsogolo view of the EARU Electric Voltage Protector, showing the LED display for L1, L2, L3 voltage and current, along with control buttons (SET, Up, Down, Power) and protection indicators. Terminal labels for N, L1, L2, L3 (IN and OUT) are also visible.

Chithunzi 3.2.2: Malingaliro view highlighting the product features and the input/output terminals (N, L1, L2, L3) at the top and bottom of the device. This image emphasizes the physical layout and connection points.

4. Kukhazikitsa ndi Kuyika

4.1. Kukwera

The EARU-1008 is designed for DIN rail mounting. Securely attach the device to a standard 35mm DIN rail within an electrical enclosure.

4.2. Malumikizidwe a Wiring

Refer to the wiring diagram below for correct connections. Ensure all connections are tight and properly insulated.

1. Connect the incoming neutral (N) and phase lines (L1, L2, L3) to the 'IN' terminals.
2. Connect the outgoing neutral (N) and phase lines (L1, L2, L3) to the 'OUT' terminals.
3. Yang'ananinso maulaliki onse musanagwiritse ntchito mphamvu.

Chithunzi 4.2.1: Detailed wiring diagram for the EARU Electric Voltage Protector, showing connections for N, L1, L2, L3 for both input and output. The diagram illustrates how to integrate the protector into a 3-phase electrical system.

5. Malangizo Ogwiritsira Ntchito

5.1. Mphamvu-Mmwamba Yoyamba

Once wired, apply power to the device. The LED display will illuminate, showing the real-time voltage and current for each phase.

5.2. Zizindikiro Zowonetsera

• V: Voltage kuwonetsa.
• A: Chiwonetsero chapano.
• Mphamvu: Output indication.
• >V: Kupitirira-voltagndi chizindikiro.
• <V: Pansi pa voltagndi chizindikiro.
• >ine: Over-current indication.

5.3. Kukhazikitsa Parameters

Use the 'SET' button to enter the configuration menu and the 'Up' and 'Down' keys to adjust values. Press 'SET' again to confirm and move to the next parameter. Hold 'SET' for 3 seconds to enter settings mode.

Chithunzi 5.3.1: A detailed guide to setting various protection parameters on the EARU Electric Voltage Protector. This includes overvoltage, kusadziperekatage, overcurrent, and recovery delay settings, with default values and adjustment ranges.

Key adjustable parameters include:

• Kupambanatage Kukhazikitsa Chitetezo: Range 230-300V (Default 270V).
• Kupambanatage Protection Recover Setting: Range 225-295V (Default 265V).
• Kupambanatage Recovery Delay: Range 1-500s (Default 30s).
• Kupambanatage Trip Delay: Range 0.1-30s (Default 1.0s).
• Kusamalatage Kukhazikitsa Chitetezo: Range 140-210V (Default 170V).
• Kusamalatage Protection Recover Setting: Range 145-215V (Default 175V).
• Kusamalatage Trip Delay: Range 0.1-30s (Default 1.0s).
• Overcurrent Protection Setting: Range 1-63A (Default 30A).
• Overcurrent Trip Delay: Range 0.1-30s (Default 1.0s).
• Voltage & Current Manual Error Calibration: Adjust for accuracy, range -9.5% to +9.5% (Default 0%).
• Power-on Delay Setting: Adjustable Range: 1-500S (Default: 10s).

5.4. Manual ON/OFF

The power button allows for manual switching of the device output.

6. Kusamalira

The EARU-1008 is designed for minimal maintenance. However, periodic checks are recommended:

• Sungani chipangizocho kukhala choyera komanso chopanda fumbi ndi zinyalala.
• Periodically inspect wiring connections for tightness and signs of wear.
• Onetsetsani mpweya wokwanira mozungulira chipangizo kuti musatenthedwe.

7. Mavuto

If the device is not functioning as expected, consider the following:

• Palibe Chiwonetsero / Palibe Mphamvu: Check the main power supply and all wiring connections.
• Protection Trip: Identify the active protection indicator (>V, <V, >I). Check the corresponding voltage or current levels. The device will automatically reset once conditions return to normal, based on configured recovery delays.
• Phase Failure: The device automatically detects and responds to phase failures, initiating a cut-off and auto-reset once the phase is restored.
• Zolakwika: If readings appear inaccurate, consider performing a manual error calibration as described in Section 5.3.

Chithunzi 7.1: This image highlights the various protection features of the EARU Electric Voltage Protector, including phase failure cut-off, low voltage cut-off, high voltage cut-off, overload cut-off, phase sequence cut-off, and auto-reset on normal conditions. These are key aspects for troubleshooting protection trips.

8. Zofotokozera

Chithunzi 8.1: This image provides a visual representation of the EARU Electric Voltage Protector's dimensions and a table of key technical specifications, including voltage, frequency, and protection ranges.

9. Chitsimikizo ndi Thandizo

9.1. Chitsimikizo

The EARU Electric Voltage Protector (Model EARU-1008) comes with a 1-year wopanga chitsimikizo kuyambira tsiku logula, kuphimba zolakwika pa zipangizo ndi kapangidwe kake pogwiritsa ntchito mwachizolowezi. Chonde sungani umboni wanu wa kugula kuti mugwiritse ntchito chitsimikizo.

9.2. Thandizo la Makasitomala

For technical assistance, troubleshooting, or warranty inquiries, please contact EARU customer support through your retailer or the official EARU website. Provide your model number (EARU-1008) and a detailed description of the issue for efficient service.